// Features specially written for demo

(function () {

  // language
  function language(params) {

    var lang = navigator.language || navigator.userLanguage;//常规浏览器语言和IE浏览器
    lang = lang.substr(0, 2);//截取lang前2位字符

    return lang;

  }
  //
  // // Tencent Forum Link Button
  // function supportButton() {
  //   const text = language() === 'zh' ? '反馈' : 'Forum';
  //   const link = language() === 'zh' ? 'https://support.qq.com/product/288322' : 'https://groups.google.com/g/luckysheet';
  //
  //   document.querySelector("body").insertAdjacentHTML('beforeend', '<a id="container" href="' + link + '" target="_blank" style="z-index:2;width:50px;height:50px;line-height:50px;position:fixed;right:40px;bottom:86px;border-radius:50px;cursor:pointer;background:rgb(71,133,249);color:#fff;text-align:center;text-decoration:none;">' + text + '</a>');
  // }
  //
  // supportButton()

  /**
   * Get url parameters
   */
  function getRequest() {
    var vars = {};
    var parts = window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi,
      function (m, key, value) {
        vars[key] = value;
      });
    return vars;
  }

  window.luckysheetUtil = {
    language: language,
    getRequest: getRequest
  }

})()
